You and your friend want to hike a trail. On the map of the​ trail, 1 inch equals 4 miles. The total length of the trail is 4 inches on the map. If you and your friend walk at 2 miles per​ hour, how long will it take to hike the entire​ trail?

First, we need to determine the actual length of the trail in miles using the scale on the map.

If 1 inch on the map equals 4 miles, then the total length of the trail in real life is:

4 inches * 4 miles/inch = 16 miles

Now, to calculate how long it will take to hike the entire trail at a speed of 2 miles per hour:

Time = Distance / Speed
Time = 16 miles / 2 miles per hour
Time = 8 hours

Therefore, it will take you and your friend 8 hours to hike the entire 16-mile trail.